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Interview Question :: Data Mining overview

What is Data Mining? What are some of the commercial DM tools? What do DM professionals do on a day to day basis, i.e project life cycle? How are queries constructed? Is it the same as SQL?

Answers to "Data Mining overview"

RE: Data Mining overview?
you can find more information from there; http://en.wikipedia.org/wiki/Data_mining
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RE: Data Mining overview?
Data mining, the extraction of hidden predictive information from large databases, is a powerful new technology with great potential to help companies focus on the most important information in their data warehouses. Data mining tools predict future trends and behaviors, allowing businesses to make proactive, knowledge-driven decisions. The automated, prospective analyses offered by data mining move beyond the analyses of past events provided by retrospective tools typical of decision support systems. Data mining tools can answer business questions that traditionally were too time consuming to resolve. They scour databases for hidden patterns, finding predictive information that experts may miss because it lies outside their expectations. How? How exactly is data mining able to tell you important things that you didn't know or what is going to happen next? The technique that is used to perform these feats in data mining is called modeling. Modeling is simply the act of building a model in one situation where you know the answer and then applying it to another situation that you don't. For instance, if you were looking for a sunken Spanish galleon on the high seas the first thing you might do is to research the times when Spanish treasure had been found by others in the past. You might note that these ships often tend to be found off the coast of Bermuda and that there are certain characteristics to the ocean currents, and certain routes that have likely been taken by the ship’s captains in that era. You note these similarities and build a model that includes the characteristics that are common to the locations of these sunken treasures. With these models in hand you sail off looking for treasure where your model indicates it most likely might be given a similar situation in the past. Hopefully, if you've got a good model, you find your treasure.
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RE: Data Mining overview?
>How are queries constructed? Is it the same as SQL? DataWarehouse has multidimensional cube structure, so use different language. For SQL Server, this language is MDX.
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Interview Question in Data Mining

Interview Question :: Data Mining overview

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